Home / 212,077.09-318,107.33-71,835.71

Finding the Fourth Proportional to 212,077.09, 318,107.33 and 71,835.71

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Solution

The fourth proportional to 212,077.09, 318,107.33 and 71,835.71 is: 107,750.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,077.09 : 318,107.33 = 71,835.71 : x
  2. Step 2: Convert to fraction form
    212,077.09/318,107.33 = 71,835.71/x
  3. Step 3: Cross multiply
    212,077.09x = 318,107.33 × 71,835.71
  4. Step 4: Simplify right side
    212,077.09x = 22,851,465,547.58
  5. Step 5: Solve for x
    x = 22,851,465,547.58/212,077.09
  6. Step 6: Final answer
    x = 107,750.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.